ASDEX Upgrade-Seminar 2025




From concept to first coil of STAR_Lite a university-scale Stellarator for training and research

AUG Seminar
STAR_Lite, a university-scale stellarator under development at Hampton University, is a student-driven initiative designed to provide unparalleled hands-on training in fusion science and contribute to cutting-edge stellarator research, particularly in areas like non-resonant divertors. This presentation provides an update on the significant progress achieved over the past year, charting the journey from initial conceptualization to the fabrication of the first modular coil. Key developments include a strategic design pivot from an initial helical concept to the computationally optimized QUASR 104183 configuration, and the implementation of an innovative 'spine winding' technique for in-house coil manufacturing. We will highlight the integral role of undergraduate and high school students in various aspects of the project, including power system development, prototype construction (STAR_little), and theoretical studies. The talk will detail the challenges overcome, the lessons learned, and the current status of STAR_Lite as it moves towards becoming an operational research and educational platform, underscoring the viability of impactful, student-led fusion projects at the university level. [mehr]

Core transport predictions of SPARC and ARC plasmas with flux-matched nonlinear gyrokinetic simulations

AUG Seminar

Fusion at Columbia: Fundamental Research and Industry Engagement

AUG Seminar
  • Datum: 19.05.2025
  • Uhrzeit: 12:30 - 13:25
  • Vortragender: Carlos Paz-Soldan
  • Carlos Paz-Soldan is an Associate Professor of Applied Physics at Columbia University in the City of New York. He received his B.Sc.E degree in Engineering Physics from Queen’s University at Kingston in 2007 and his Ph.D degree in Physics from the University of Wisconsin-Madison in 2012. After his Ph.D he worked as a scientist at General Atomics in San Diego until he was appointed with tenure to Columbia University in 2021. Carlos Paz-Soldan’s research interests are motivated by the desire to solve the scientific and technological challenges standing in the way of harnessing controlled fusion energy on earth. In particular, he is interested the control of transient off-normal events that can prevent the reliable operation of magnetic fusion device concepts. Dr. Paz-Soldan is the recipient of the Marshall N. Rosenbluth Outstanding Doctoral Thesis Prize in 2013 and the Thomas H. Stix Award for Outstanding Early Career Contributions to Plasma Physics Research in 2021, both from the American Physical Society.
  • Ort: IPP Garching
  • Raum: Seminarraum D3
Culminating in the recently announced launch of the Columbia Fusion Research Center, Fusion at Columbia has been expanding into new directions and with new partners. This presentation will discuss a mix of fundamental research carried out at Columbia, sponsored by the federal government, and research in support of the growing private fusion sector, sponsored directly by industry. Technical topics to be discussed will be in the area of disruptions and MHD, which is particularly important for tokamaks under construction, as well as reactor design more broadly and applied to negative triangularity tokamaks specifically, and if time allows touch on fusion technology and stellarators. The role of partnerships will be emphasized, whether in collaboration with industry, national laboratories, or international partners. Finally, an informal summary on recent changes in the US research ecosystem and associated impacts will be provided. [mehr]

PFMC Rehearsal

AUG Seminar

Progress on the ARC Physics Basis

AUG Seminar

RFPPC & PFMC Poster Rehearsal

AUG Seminar

Phenomenology of radiative tearing modes in ASDEX Upgrade

AUG Seminar

Implementation of polarization resolved Motional-Stark spectroscopy on TCV

AUG Seminar
Motional-Stark spectroscopy is a powerful diagnostic for determining the magnetic field distribution in the plasma core, especially when heating systems such as Neutral Beam Heating and Electron Cyclotron Resonance Heating are used, as they can locally change the magnetic field. A spectroscopic system has been installed on TCV to measure the D_alpha emission. The magnetic field is obtained by performing a least-squares optimization method on the measured D_alpha emission with a theoretical model that considers Motional-Stark effect, with the poloidal magnetic field as a free parameter. [mehr]

One-field gyro-fluid Hasegawa-Mima models

AUG Seminar
The Hasegawa-Mima equation is a well-studied equation in Plasma Physics. Due to its simplicity, drift wave dynamics can be studied in an isolated environment. In this talk, some assumptions of the (standard) Hasegawa-Mima equation are loosened, and two modified versions are derived. The first approach does not split quantities like the density into a background and fluctuating term (full-F vs. delta-F), making it much more complicated but also better applicable in the plasma edge region. The second approach introduces finite Larmor (FLR) effects. Those effects are compared with the standard Hasegawa-Mima equation. [mehr]
Jacob Schellpfeffer from MIT will give a rehearsal for his US-TTF talk [mehr]

ECPD Rehearsal

AUG Seminar

DPG Rehearsal

AUG Seminar

DPG Poster Rehearsal

AUG Seminar

DPG Rehearsal / 1 talk and 7 posters

AUG Seminar

DPG Rehearsals / 1 talk and 7 posters

AUG Seminar

Overview of STEP Matter Injection Concept Design

AUG Seminar
STEP is the UK’s major technology and infrastructure programme to build a prototype fusion powerplant that will demonstrate net energy, fuel self-sufficiency and a viable route to plant maintenance. This presentation will give a short overview of the STEP programme before introducing the STEP fuel cycle and providing an overview of the current Matter Injection system design. The presentation will touch on the plans for the ‘three pillars’ of Matter Injection, fuelling, gas puffing and disruption mitigation before highlighting the key risks in each area and planned work for the coming years as the STEP design matures. [mehr]

Implementation of new bolometer electronics at AUG

AUG Seminar

Tradeoffs and Expectations for Negative Triangularity Fusion Power Plants

AUG Seminar

APS Rehearsals

AUG Seminar

H-Mode Workshop Rehearsals

AUG Seminar

A compact stellarator-tokamak hybrid

AUG Seminar

SOFT Rehearsals II

AUG Seminar

SOFT Rehearsals I

AUG Seminar

Comparison of EQH and IDE equilibria for selected discharges

AUG Seminar

EPS Rehearsals V

AUG Seminar - EPS Rehearsals

EPS Rehearsals IV

AUG Seminar - EPS Rehearsals

EPS Rehearsals III

AUG Seminar - EPS Rehearsals

EPS Rehearsals II

AUG Seminar - EPS Rehearsals

EPS Rehearsals I

AUG Seminar - EPS Rehearsals

Validation of plasmoid drift effect simulations with AUG SPI data

AUG Seminar
Rehearsal Review Talk PSI 40' incl. discussion [mehr]

ERW16 rehearsals II

AUG Seminar

ERW16 rehearsals I

AUG Seminar

Further EC frequencies for ASDEX Upgrade?

AUG Seminar

Impact of disruptions on tokamak design Part I

AUG Seminar

Overview of CFS's Radiation Protection Program

AUG Seminar

DPG Rehearsals

AUG Seminar

DPG Rehearsals

AUG Seminar

DPG Rehearsals

AUG Seminar

DPG Rehearsals

AUG Seminar
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